Auxiliary demolding device for glass steel sand pipe production

Abstract

The utility model belongs to the field of glass steel sand pipe processing, especially relates to a kind of auxiliary demolding device for glass steel sand pipe production.A kind of glass steel sand pipe production auxiliary demolding device that can reduce glass steel sand pipe demolding damage rate, including frame body, lifting mechanism, limiting mechanism, mould body, demolding mechanism, first support mechanism etc.;Two lifting mechanisms are slidably connected between the front and rear of frame body, and lifting mechanism can be fixed on frame body by bolt, and lifting mechanism is used to support the demolding pipeline and mould.The utility model injects lubricating liquid into liquid storage sac by injection pipe, and lubricating liquid is added to the inside of pipeline by spray pipe and ball, to reduce the friction between pipeline and annular template, so that the pipeline can be better demoulded, and also can prevent pipeline damage;Mould body is driven to rotate forward and backward by auxiliary demolding structure, so that its bonding surface with pipeline can be loosened comprehensively.

Description

Technical Field

[0001] This utility model belongs to the field of fiberglass reinforced plastic (FRP) pipe processing, and particularly relates to an auxiliary demolding device for the production of FRP pipes. Background Technology

[0002] Fiberglass reinforced plastic (FRP) pipes are a new type of composite material made with resin as the matrix, glass fiber and its products as reinforcement, and quartz sand as filler. With its excellent corrosion resistance, hydraulic properties, lightweight yet high strength, large flow capacity, convenient installation, short construction period, and low overall investment, it has become the best choice for the chemical industry, drainage projects, and pipeline engineering.

[0003] In the demolding process of fiberglass reinforced plastic (FRP) pipes, the current mainstream demolding method adopts an "end-claw gripping and pushing" structure: four metal claws extend from the end of the pipe, grip the inner wall or end face of the pipe, and then drag it backward, forcing the pipe to separate from the mold mandrel. This method has a core defect: the claws and the end of the pipe are in point contact, and the axial tensile force during demolding is completely concentrated at the contact point of the claws, which can easily lead to cracks, missing corners, or scratches on the inner wall of the pipe end; different pipe diameters require corresponding specifications of claws, and the depth of the claw insertion needs to be manually adjusted. If the insertion is too shallow, it is easy to slip out, and if it is too deep, it will damage the inner wall of the pipe; the claws only apply force from the end, and there is no support in the middle of the pipe. During the dragging process, the pipe body is prone to radial displacement, causing the pipe to jam with the mold mandrel, further aggravating the stress damage to the end.

[0004] Therefore, there is an urgent need to develop an auxiliary demolding device for the production of fiberglass reinforced plastic (FRP) pipes that can reduce the damage rate during demolding. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an auxiliary demolding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes, which can reduce the damage rate of FRP sand-filled pipes during demolding.

[0006] The technical solution is as follows: An auxiliary demolding device for the production of fiberglass reinforced plastic (FRP) pipes, comprising a frame, a lifting mechanism, a limiting mechanism, a mold body, a demolding mechanism, a first support mechanism, a second support mechanism, and an auxiliary demolding structure. Two lifting mechanisms are slidably connected left and right between the front and rear of the frame. These lifting mechanisms are bolted to the frame and support the demolded pipe and mold. The lifting mechanisms are slidable to support pipes of different lengths. A limiting mechanism is provided on the left side of the frame to restrict the demolded pipe from moving to the left. The mold body is placed on top of the lifting mechanisms during demolding. The height of the mold body is changed by the lifting mechanism, so that the mold body can be demolded in the optimal position. The demolding mechanism is slidably installed in the frame, pulling the mold body to the left for demolding. The demolding mechanism is equipped with a first support mechanism on the left side. After the demolding operation is completed, the first support mechanism supports the left side of the mold body. The frame is equipped with a second support mechanism on the left side. After the demolding operation is completed, the second support mechanism supports the right side of the mold body. The demolding mechanism is equipped with an auxiliary demolding structure on the left side. The auxiliary demolding structure drives the mold body to rotate, so that the mold body can be better separated from the pipe.

[0007] Furthermore, the frame includes a gantry frame, guide rods, and an annular mounting plate. Guide rods are provided on both the front and rear sides of the gantry frame. The guide rods are slidably connected to the lifting mechanism to provide guidance for the lifting mechanism to drive the mold body to move vertically. The annular mounting plate is installed on the left side of the gantry frame, and the limiting mechanism is installed on the left side of the annular mounting plate. When the pipeline is demolding, the mold body passes through the annular mounting plate.

[0008] Furthermore, the lifting mechanism includes a motor, a lead screw, an arc-shaped support plate, and an anti-slip pad. Each lifting mechanism consists of two motors installed in the front and rear, a lead screw installed on the motor output, and an arc-shaped support plate connected between the two lead screws by threads. The arc-shaped support plate is slidably connected to the guide rod. The anti-slip pad is installed on the contact surface between the arc-shaped support plate and the mold body. The motor rotation drives the lead screw to rotate, thereby realizing the lifting operation of the arc-shaped support plate and the mold body. The anti-slip pad is used to prevent the pipe from rotating during the demolding process.

[0009] Furthermore, the limiting mechanism includes limiting hydraulic rods and limiting plates. Limiting hydraulic rods extending toward the center of the ring are evenly spaced on the annular mounting plate. The inner ends of the limiting hydraulic rods are all provided with limiting plates. During demolding operations, the limiting plates are locked on the left side of the pipe.

[0010] Furthermore, during the demolding operation, the mold body is placed between the top of the arc-shaped support plates. The mold body includes an annular template, a reinforcing plate, and a clamping plate. The reinforcing plate is installed on the inner side of the annular template, making the annular template more stable. The clamping plate is installed on the left side of the reinforcing plate, and during the demolding operation, the clamping plate is clamped on the left side of the demolding mechanism.

[0011] Furthermore, the mold body also includes a liquid reservoir, an injection pipe, a spray nozzle, and a ball bearing. A ring of liquid reservoirs extending left and right are evenly spaced on the inner side of the annular template. An injection pipe is connected to the left side of each liquid reservoir to add lubricant into the liquid reservoir. At least two rings of spray nozzles are provided on the outer surface of the liquid reservoir. The spray nozzles extend outward and pass through the annular template. A ball bearing is rotatably provided at the outer end of the spray nozzle. The outer end face of the ball bearing is flush with the outer side of the annular template.

[0012] Furthermore, the demolding mechanism includes an X-axis electric track, a sliding plate, a track mounting plate, a Y-axis electric track, a movable clamping plate, and wheels. X-axis electric tracks extending left and right are provided on the top and bottom front and rear sides of the gantry frame. Sliding plates are slidably mounted on the X-axis electric tracks, moving left and right via the X-axis electric tracks. Track mounting plates connect the upper and lower sliding plates. Y-axis electric tracks are bolted to opposite sides of the upper and lower track mounting plates. Movable clamping plates are symmetrically slidably mounted between the Y-axis electric tracks, separating or closing via the Y-axis electric tracks. When the mold body is placed on the lifting mechanism for demolding, the movable clamping plates are on the right side of the clamping plate. Wheels are symmetrically mounted on the bottom of the lower track mounting plate, with the wheels in contact with the ground.

[0013] Furthermore, the first support mechanism includes a right-side support hydraulic rod and a right-side pad. The right-side support hydraulic rod is vertically installed on the lower left side of the annular mounting plate by bolts, and the top of the right-side support hydraulic rod is connected to the right-side pad. When the mold body moves to the left to perform the demolding operation, the right-side pad supports the right side of the mold body.

[0014] Furthermore, the second support mechanism includes a left-side support hydraulic rod and a left-side pad. The left-side support hydraulic rod is vertically installed in the middle right side of the lower track mounting plate, and the top of the left-side support hydraulic rod is connected to the left-side pad. When the mold body moves to the left to perform the demolding operation, the left-side pad supports the left side of the mold body.

[0015] Furthermore, the auxiliary demolding structure includes a cylinder, a two-way clamping plate, and a retaining shaft. The front movable clamping plate is vertically mounted with a cylinder whose telescopic end faces downward by bolts. The telescopic end of the cylinder is connected to the two-way clamping plate. The two-way clamping plate is vertically slidably connected to the front movable clamping plate. Retaining shafts are provided on both the front and rear sides of the left side of the clamping plate. The retaining shaft on the front side is locked inside the two-way clamping plate.

[0016] The beneficial effects are as follows: This utility model injects lubricating fluid into the reservoir through the injection pipe. The lubricating fluid is added to the inner side of the pipe through the spray pipe and ball bearings, reducing the friction between the pipe and the annular template, making the pipe easier to demold and preventing damage to the pipe. The auxiliary demolding structure drives the mold body to rotate clockwise and counterclockwise, so that the bonding surface between the mold and the pipe can be fully loosened, facilitating subsequent demolding. At the same time, the area of ​​lubricating oil applied to the inner side of the pipe is larger, further reducing friction. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the frame and lifting mechanism of this utility model.

[0019] Figure 3 This is a positional diagram of the limiting mechanism and the mold body of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism and the mold body of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the interior of the mold body of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the demolding mechanism, the first support mechanism, and the second support mechanism of this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the auxiliary demolding structure of this utility model.

[0024] Component names and serial numbers in the diagram: 1_Frame, 11_Gantry, 12_Guide rod, 13_Annular mounting plate, 2_Lifting mechanism, 21_Motor, 22_Screw, 23_Arc support plate, 24_Anti-slip mat, 3_Limiting mechanism, 31_Limiting hydraulic rod, 32_Limiting plate, 4_Mold body, 41_Annular template, 42_Reinforcing plate, 43_Clamping plate, 44_Reservoir, 45_Injection pipe, 46_Spray nozzle, 4 7_Ball bearings, 5_Demolding mechanism, 51_X-axis electric track, 52_Sliding plate, 53_Track mounting plate, 54_Y-axis electric track, 55_Moving clamping plate, 56_Wheel, 6_First support mechanism, 61_Right side support hydraulic rod, 62_Right pad, 7_Second support mechanism, 71_Left side support hydraulic rod, 72_Left pad, 8_Auxiliary demolding structure, 81_Cylinder, 82_Two-way clamping plate, 83_Clamping shaft. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0026] An auxiliary demolding device for the production of fiberglass reinforced plastic (FRP) pipes, such as Figures 1-6 As shown, the device includes a frame 1, a lifting mechanism 2, a limiting mechanism 3, a mold body 4, a demolding mechanism 5, a first support mechanism 6, a second support mechanism 7, and an auxiliary demolding structure 8. Two lifting mechanisms 2 are slidably connected between the front and rear of the frame 1. The lifting mechanisms 2 are bolted to the frame 1 and support the demolded pipe and mold. The lifting mechanisms 2 can slide to support pipes of different lengths. A limiting mechanism 3 is provided on the left side of the frame 1 to restrict the demolded pipe from moving to the left. The mold body 4 is placed on top of the lifting mechanism 2 during demolding. The lifting mechanism 2 is used to change the shape of the mold. The height of the body 4 allows the mold body 4 to be demolded in the optimal position. A demolding mechanism 5 is slidably installed inside the frame 1. The demolding mechanism 5 pulls the mold body 4 to the left to perform the demolding operation. A first support mechanism 6 is provided on the left side of the demolding mechanism 5. After the demolding operation is completed, the first support mechanism 6 supports the left side of the mold body 4. A second support mechanism 7 is provided on the left side of the frame 1. After the demolding operation is completed, the second support mechanism 7 supports the right side of the mold body 4. An auxiliary demolding structure 8 is provided on the left side of the demolding mechanism 5. The auxiliary demolding structure 8 drives the mold body 4 to rotate, so that the mold body 4 can be better separated from the pipe.

[0027] When demolding the pipe is required, first place the mold body 4 containing the pipe on the lifting mechanism 2, such as... Figure 1 As shown, the pipe is placed, and then the lifting mechanism 2 moves the mold body 4 upward to the designated position. At this time, the left end of the pipe is limited by the limiting mechanism 3, and the left end of the mold body 4 is clamped by the demolding mechanism 5. Then, the demolding mechanism 5 moves the mold body 4 to the left to demold the pipe. During the demolding process, the auxiliary demolding structure 8 drives the mold body 4 to rotate back and forth, so that the mold body 4 can better separate from the pipe. During the demolding process, the first support mechanism 6 and the second support mechanism 7 support the pipe body. After the demolding operation is completed, the demolded pipe and mold body 4 are removed, and the equipment is reset.

[0028] like Figure 1 and Figure 2 As shown, the frame 1 includes a gantry frame 11, guide rods 12, and annular mounting plate 13. Guide rods 12 are provided on both the front and rear sides of the gantry frame 11. The guide rods 12 are slidably connected to the lifting mechanism 2, providing guidance for the lifting mechanism 2 to drive the mold body 4 to move vertically. The annular mounting plate 13 is installed on the left side of the gantry frame 11, and the limiting mechanism 3 is installed on the left side of the annular mounting plate 13. When the pipe is demolded, the mold body 4 passes through the annular mounting plate 13.

[0029] like Figure 1 and Figure 2 As shown, the lifting mechanism 2 includes a motor 21, a lead screw 22, an arc-shaped support plate 23, and an anti-slip pad 24. Each lifting mechanism 2 consists of two motors 21 installed in the front and rear, a lead screw 22 installed on the output of the motor 21, and an arc-shaped support plate 23 connected between the two lead screws 22 by threads. The arc-shaped support plate 23 is slidably connected to the guide rod 12. The anti-slip pad 24 is installed on the contact surface between the arc-shaped support plate 23 and the mold body 4. The motor 21 rotates to drive the lead screw 22 to rotate, thereby realizing the lifting operation of the arc-shaped support plate 23 and the mold body 4. The anti-slip pad 24 is used to prevent the pipe from rotating during the demolding process.

[0030] When demolding the pipe, the mold body 4 with the pipe is placed between the arc-shaped support plates 23. Then, the control motor 21 rotates synchronously, driving the lead screw 22 to rotate, causing the arc-shaped support plate 23 to move upward, which in turn drives the mold body 4 with the pipe to move upward. When the axis of the mold body 4 with the pipe coincides with the axis of the annular mounting plate 13, the control motor 21 stops working, and then the demolding operation begins.

[0031] like Figure 3 and Figure 4 As shown, the limiting mechanism 3 includes limiting hydraulic rods 31 and limiting plates 32. Limiting hydraulic rods 31 extending toward the center of the circle are evenly spaced on the annular mounting plate 13. Limiting plates 32 are provided at the inner ends of the limiting hydraulic rods 31. When demolding is performed, the limiting plates 32 are stuck on the left side of the pipe.

[0032] After the mold body 4 with the pipe is placed, the limiting hydraulic rod 31 is extended to move the limiting plate 32 closer to the mold body 4 until the inner end face of the limiting plate 32 contacts the outer side of the mold body 4. Then, the limiting hydraulic rod 31 stops passing through. At this time, the limiting plate 32 is on the left side of the pipe. When the demolding mechanism 5 moves the mold body 4 to the left, the limiting plate 32 blocks the pipe, preventing the pipe from moving to the left. The mold body 4 moves to the left to complete the demolding work. After the pipe is demolded, the limiting hydraulic rod 31 drives the limiting plate 32 to reset.

[0033] like Figure 3 , Figure 4 and Figure 5As shown, during the demolding operation, the mold body 4 is placed between the tops of the arc-shaped support plates 23. The mold body 4 includes an annular template 41, a reinforcing plate 42, and a clamping plate 43. The reinforcing plate 42 is installed on the inner side of the annular template 41, making the annular template 41 more stable. The clamping plate 43 is installed on the left side of the reinforcing plate 42. During the demolding operation, the clamping plate 43 is clamped on the left side of the demolding mechanism 5. The mold body 4 also includes a liquid reservoir 44, an injection pipe 45, a spray pipe 46, and a ball bearing 47. A ring of liquid reservoirs 44 extending left and right is evenly spaced on the inner side of the annular template 41. The left side of each liquid reservoir 44 is connected to an injection pipe 45, through which lubricant is added to the liquid reservoir 44. At least two rings of spray pipes 46 are provided on the outer surface of the liquid reservoir 44. The spray pipes 46 extend outward and pass through the annular template 41. A ball bearing 47 is rotatably provided at the outer end of the spray pipe 46. The outer end face of the ball bearing 47 is flush with the outer side of the annular template 41.

[0034] During the demolding operation, the demolding mechanism 5 is clamped on the right side of the clamping plate 43. Then, the demolding mechanism 5 pulls the mold body 4 to the left through the clamping plate 43 to perform the demolding work. During the demolding process, lubricating fluid is injected into the liquid storage bladder 44 through the injection pipe 45. The lubricating fluid is added to the inner side of the pipe through the spray pipe 46 and the ball bearing 47 to reduce the friction between the pipe and the annular template 41, so that the pipe can be demolded better, and at the same time, it can also prevent the pipe from being damaged.

[0035] like Figure 6 As shown, the demolding mechanism 5 includes an X-axis electric rail 51, a sliding plate 52, a rail mounting plate 53, a Y-axis electric rail 54, a movable clamping plate 55, and wheels 56. The top and bottom front and rear sides of the gantry frame 11 are provided with left and right extending X-axis electric rails 51. Sliding plates 52 are slidably mounted on the X-axis electric rails 51. The sliding plates 52 are moved left and right by the X-axis electric rails 51. Rail mounting plates 53 are connected between the upper sliding plates 52 and between the lower sliding plates 52. The opposite sides of the upper and lower rail mounting plates 53 are fixedly connected to the Y-axis electric rails 54 by bolts. Movable clamping plates 55 are symmetrically slidably mounted between the Y-axis electric rails 54. The movable clamping plates 55 are separated or closed by the Y-axis electric rails 54. When the mold body 4 is placed on the lifting mechanism 2 for demolding, the movable clamping plate 55 is on the right side of the clamping plate 43. The bottom of the lower rail mounting plate 53 is symmetrically mounted with wheels 56, which are in contact with the ground.

[0036] When demolding the pipe, the Y-axis electric rail 54 first drives the movable clamping plate 55 to close until the movable clamping plate 55 moves to the right side of the clamping plate 43. The Y-axis electric rail 54 is then stopped. Then, the X-axis electric rail 51 drives the movable clamping plate 55 to move to the left. The clamping plate 43 drives the annular template 41 and its upper device to move to the left to perform the demolding work. After the pipe demolding is completed, the Y-axis electric rail 54 drives the movable clamping plate 55 to separate and reset. Then, the mold body 4 and the pipe are removed, and the X-axis electric rail 51 drives the rail mounting plate 53 and its upper device to move to the right and reset.

[0037] like Figure 6 As shown, the first support mechanism 6 includes a right-side support hydraulic rod 61 and a right-side pad 62. The right-side support hydraulic rod 61 is vertically installed on the lower left side of the annular mounting plate 13 by bolts. The top of the right-side support hydraulic rod 61 is connected to the right-side pad 62. When the mold body 4 moves to the left to perform demolding, the right-side pad 62 supports the right side of the mold body 4.

[0038] like Figure 6 As shown, the second support mechanism 7 includes a left support hydraulic rod 71 and a left pad 72. The left support hydraulic rod 71 is vertically installed in the middle of the right side of the lower track mounting plate 53. The top of the left support hydraulic rod 71 is connected to the left pad 72. When the mold body 4 moves to the left to perform demolding, the left pad 72 supports the left side of the mold body 4.

[0039] After the mold body 4 with the pipe is placed on the arc-shaped support plate 23, the right support hydraulic rod 61 and the left support hydraulic rod 71 are extended, which drives the right pad plate 62 and the left pad plate 72 to move upward and contact the mold body 4, and support the mold body 4. When the mold body 4 moves to the left, the right pad plate 62 and the left pad plate 72 continue to support the mold body 4. After the mold body 4 is separated from the pipe, the mold body 4 is removed from the right pad plate 62 and the left pad plate 72.

[0040] like Figure 7 As shown, the auxiliary demolding structure 8 includes a cylinder 81, a two-way clamping plate 82, and a retaining shaft 83. The front movable clamping plate 55 is vertically mounted with a cylinder 81 with its telescopic end facing downward by bolts. The telescopic end of the cylinder 81 is connected to the two-way clamping plate 82. The two-way clamping plate 82 is vertically slidably connected to the front movable clamping plate 55. The retaining shaft 83 is provided on both the front and rear sides of the left side of the retaining plate 43. The retaining shaft 83 on the front side is locked in the two-way clamping plate 82.

[0041] During the demolding process of the pipe, the control cylinder 81 repeatedly extends and retracts, driving the bidirectional clamping plate 82 to move up and down. Through the clamping shaft 83, the mold body 4 is driven to rotate clockwise and counterclockwise continuously. The clockwise and counterclockwise rotation of the mold body 4 allows the bonding surface between it and the pipe to be fully loosened, facilitating subsequent demolding. At the same time, the area of ​​lubricating oil applied to the inner side of the pipe is also larger, which better reduces friction. After the demolding operation is completed, the control cylinder 81 stops working.

[0042] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. An auxiliary demolding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes, characterized in that: The system includes a frame (1), a lifting mechanism (2), a limiting mechanism (3), a mold body (4), a demolding mechanism (5), a first support mechanism (6), a second support mechanism (7), and an auxiliary demolding structure (8). Two lifting mechanisms (2) are slidably connected between the front and rear of the frame (1). The lifting mechanisms (2) can be fixed to the frame (1) and are used to support the demolding pipe and mold. A limiting mechanism (3) is provided on the left side of the frame (1). The mold body (4) is in the demolding... The mold body (4) is placed on top of the lifting mechanism (2). The height of the mold body (4) is changed by the lifting mechanism (2). The demolding mechanism (5) is installed in the frame (1) and slides left and right. The demolding mechanism (5) pulls the mold body (4) to the left to perform demolding. The demolding mechanism (5) is provided with a first support mechanism (6) on the left side and a second support mechanism (7) on the left side of the frame (1). The demolding mechanism (5) is provided with an auxiliary demolding structure (8) on the left side. The mold body (4) is rotated by the auxiliary demolding structure (8).

2. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 1, characterized in that: The frame (1) includes a gantry (11), guide rods (12) and annular mounting plate (13). Guide rods (12) are provided on both the front and rear sides of the gantry (11). The guide rods (12) are slidably connected to the lifting mechanism (2). The annular mounting plate (13) is installed on the left side of the gantry (11), and the limiting mechanism (3) is installed on the left side of the annular mounting plate (13).

3. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 2, characterized in that: The lifting mechanism (2) includes a motor (21), a lead screw (22), an arc-shaped support plate (23), and an anti-slip pad (24). Each lifting mechanism (2) consists of two motors (21) installed in the front and rear, a lead screw (22) installed on the output of the motor (21), and an arc-shaped support plate (23) connected between the two lead screws (22) by a thread. The arc-shaped support plate (23) is slidably connected to the guide rod (12), and the anti-slip pad (24) is installed on the contact surface between the arc-shaped support plate (23) and the mold body (4).

4. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 3, characterized in that: The limiting mechanism (3) includes a limiting hydraulic rod (31) and a limiting plate (32). The limiting hydraulic rods (31) extending toward its center are evenly spaced on the annular mounting plate (13). The inner ends of the limiting hydraulic rods (31) are all provided with limiting plates (32).

5. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 4, characterized in that: When performing demolding, the mold body (4) is placed between the top of the arc support plate (23). The mold body (4) includes an annular template (41), a reinforcing plate (42) and a clamping plate (43). The reinforcing plate (42) is installed on the inner side of the annular template (41), and the clamping plate (43) is installed on the left side of the reinforcing plate (42).

6. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 5, characterized in that: The mold body (4) also includes a liquid storage bladder (44), an injection pipe (45), a spray pipe (46) and a ball bearing (47). A ring of liquid storage bladders (44) extending left and right are evenly spaced on the inner side of the annular template (41). An injection pipe (45) is connected to the left side of each liquid storage bladder (44). At least two rings of spray pipes (46) are provided on the outer surface of the liquid storage bladder (44). The spray pipes (46) extend outward and pass through the annular template (41). A ball bearing (47) is rotatably provided at the outer end of the spray pipe (46). The outer end face of the ball bearing (47) is flush with the outer side of the annular template (41).

7. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 6, characterized in that: The demolding mechanism (5) includes an X-axis electric track (51), a sliding plate (52), a track mounting plate (53), a Y-axis electric track (54), a movable clamping plate (55), and wheels (56). The top and bottom front and rear sides of the gantry frame (11) are provided with left and right extended X-axis electric tracks (51). Sliding plates (52) are slidably arranged on the X-axis electric tracks (51). Track mounting plates (53) are connected between the upper sliding plates (52) and between the lower sliding plates (52). Y-axis electric tracks (54) are fixedly connected to the opposite side of the upper and lower track mounting plates (53). Movable clamping plates (55) are symmetrically arranged between the Y-axis electric tracks (54). Wheels (56) are symmetrically arranged at the bottom of the lower track mounting plate (53).

8. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 7, characterized in that: The first support mechanism (6) includes a right-side support hydraulic rod (61) and a right pad (62). The right-side support hydraulic rod (61) is vertically installed on the lower left side of the annular mounting plate (13) by bolts, and the right pad (62) is connected to the top of the right-side support hydraulic rod (61).

9. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 8, characterized in that: The second support mechanism (7) includes a left support hydraulic rod (71) and a left pad (72). The left support hydraulic rod (71) is vertically installed in the middle right side of the lower track mounting plate (53), and the left pad (72) is connected to the top of the left support hydraulic rod (71).

10. The auxiliary demolding device for producing fiberglass reinforced plastic (FRP) pipes as described in claim 9, characterized in that: The auxiliary demolding structure (8) includes a cylinder (81), a two-way clamping plate (82), and a retaining shaft (83). The front movable clamping plate (55) is vertically mounted with a cylinder (81) with its telescopic end facing downward. The telescopic end of the cylinder (81) is connected to the two-way clamping plate (82). The two-way clamping plate (82) is vertically slidably connected to the front movable clamping plate (55). The retaining plate (43) has retaining shafts (83) on both the front and rear sides of the left side. The retaining shaft (83) on the front side is stuck in the two-way clamping plate (82).

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